Security is worth every penny you pay for it. So is convenience. By Nicholas Ware Updated Feb 12, 2024 3:20 PM EST We may earn revenue from the products available on ...

The motion sensor switch circuit can automatically turn on a water sprinkler but you can easily use it as a motion sensor light switch or motion activated alarm too. Before beginning the construction ...

The reason people can approach animals in the wild more easily from a car than by foot may be due to an innate "life detector" tuned to the visual movements of an approaching predator's feet, says ...

We've had our fill of boring motion-sensor alarms designed to clip onto laptop bags or hotel room doors and sound an alarm when rattled. Why can't someone make a motion sensor alarm that looks like an ...